The Chicago Blackhawks won the Stanley Cup, but there’s one aspect of their game that the Calgary Flames don’t want to emulate.

During the 2015 playoffs, Chicago leaned heavily on defensemen Duncan Keith, Brent Seabrook, Niklas Hjalmarsson, and Johnny Oduya. In early May Michal Rozsival suffered an ankle injury and that led to the Blackhawks using their top-four defensemen even more extensively as no other blueliners averaged more than 10 minutes per contest.

That worked out, but it was also a big burden on those four players. Calgary had a group that, when healthy, could similarly carry that kind of load in T.J. Brodie, Mark Giordano, Dennis Wideman, and Kris Russell, but after acquiring Dougie Hamilton over the summer, Calgary won’t have to resort to that. The Flames should be able to use all three pairings with confidence, which has the potential to pay off as the campaign progresses.

“When we throw a defenseman on the ice, he will be 100% rested because part of our style is go, go, go,” Flames coach Bob Hartley told the Calgary Sun.

The main question now is what the Flames’ defensive pairings will look like as Hamilton potentially throws a wrench in their old setup. It’s a good problem for Hartley to have and he’ll deal with it by trying a lot of different combinations over the preseason.

In Chicago, conversation about the cost of keeping the team together never really ends.

Having just come off a summer in which Brandon Saad, Brad Richards, Johnny Oduya and Patrick Sharp all exited due to financial constraints, the ‘Hawks can now begin looking ahead to next July, when another prized player could go unrestricted:

Brent Seabrook.

Seabrook, 30, is heading into the last of a five-year, $29 million deal with a $5.8M cap hit. His resume is loaded — three Stanley Cups, Olympic gold, a ’15 All-Star Game appearance — and he’s coming off a postseason in which he led all defensemen in goals (seven), the same number that Tampa Bay captain Steve Stamkos potted.

So needless to say, he’d be coveted on the open market.

There are two sides to this discussion. The first is why Seabrook would want to stay in Chicago, and it’s a fairly easy sell — it’s the only team he’s ever known, having been drafted by the ‘Hawks in the first round in ’03. He’s since appeared in over 800 games in a ‘Hawks sweater during his 10-year career, and developed a dynamic pairing with fellow blueliner (and one of his best friends) Duncan Keith.

Seabrook also has, as mentioned above, achieved a boatload of success with the ‘Hawks.

But there are reasons why he’d leave.

Well, one big reason — the money.

Per war-on-ice.com, the ‘Hawks already have close to $60 million committed to 16 players after this season. While there aren’t many other noteworthy contracts on the horizon — Andrew Shaw will require a new deal in ’16-17, Teuvo Teravainen and Marko Dano the year after — there is a question of how much Chicago can pay Seabrook.

Do consider that, a few weeks ago, Calgary gave Mark Giordano — who’s a year older than Seabrook — a six year, $40.5 million extension that carries a $6.75M cap hit. Earlier this summer, TSN speculated that Seabrook “is due to earn at least Dion Phaneuf-type money, in the neighborhood of seven years and $49 million.”

Those are both pretty steep AAVs but, given the dearth of quality UFA defensemen that usually hit the market, they could be in Seabrook’s wheelhouse. Remember that Mike Green got $6M per from Detroit this summer, while Andrej Sekera got $33 million over five years from the Oilers.

If Seabrook doesn’t sign an extension prior to the season starting, you can expect this conversation to pick up steam as the year progresses.

According to war-on-ice.com, the ‘Hawks are nearly $400K over the $71.4 million salary cap, with the likes of ace penalty killer Marcus Kruger and fellow depth checker Joakim Nordstrom still requiring new deals. Kruger’s said he’s willing to sit and wait for an extension and Bowman suggested he’d like to get it signed before training camp, which means the ‘Hawks will have to shed some bucks within the next three weeks or so.

So, how will they do it?

Bryan Bickell, he of the $4 million average annual cap hit — and multiple healthy scratches during the playoffs — has been bandied about as potential trade bait. The club could also try and do something with Kris Versteeg ($2.2M cap hit).

Or maybe Bowman makes a move he doesn’t want to make.

That was the situation earlier this summer with Saad, when the ‘Hawks were forced to move their promising young power forward to Columbus because the dollars didn’t make sense. Remember, Bowman was at one point very adamant he’d get a deal done with Saad — vowing to keep him in Chicago “for years to come” — only to later realize it wasn’t going to work within the budget.

Bowman’s financial pressure isn’t solely about getting under the cap to start the year, either. The ‘Hawks are built to contend, which means there should be some room for potential acquisitions during the season, most notably at the deadline.

Unlike the other dilemmas he’s faced, Bowman has virtually zero control over how this one plays out; there’s no timeline for the ongoing police investigation and no clear picture on what would happen should Kane be charged.

All of which makes for a stressful lead-up to the season. Bowman’s got his hands full.

Despite the plethora of changes made to their roster this summer, the Chicago Blackhawks should once again be contenders in this season. Immediately following their third Stanley Cup victory in six years, oddsmakers chose Chicago as the favorite to win the cup again.

Chicago’s success this season will depend on how newcomers fair. The Blackhawks lost four key pieces of their team in the offseason with Brandon Saad, Patrick Sharp, Johnny Oduya and Brad Richards all finding new homes.

Salary cap constraints will force the Blackhawks to rely on younger players such as Teuvo Teravainen this season. The 20-year-old appeared in 34 games with the ‘Hawks last season, scoring four goals and nine points.

Artem Anisimov, acquired in the Saad deal, will likely slot in behind Jonathan Toews as the ‘Hawks second line center. Newcomers Ryan Garbutt and Marko Dano will also fill holes in the Blackhawks roster this season.

“I think change is good, and I think we’ve embraced that in the past and been able to bring in some players that now are household names … but at one point they were new,” GM Stan Bowman told NHL.com. “It’s going to be the same thing for some of the new guys that are part of this group next year. They might be new to the fans and media, but as you’ll see in time, I think we’re really going to fall in love with some of these guys.”

Chicago will also have new regulars on the blue line with the likes of Trevor van Riemsdyk and David Rundblad vying for roster spots behind Duncan Keith, Brent Seabrook, Niklas Hjalmarsson and Trevor Daley. Erik Gustafsson and Ville Pokka will also battle for spots on the back end.

In goal, Corey Crawford is the clear cut No. 1 while Scott Darling beat out Antti Raanta for the backup role. Raanta was dealt to the New York Rangers during the offseason.

One wild card for the Blackhawks is, of course, Patrick Kane. The 26-year-old is currently the subject of a police investigation. Kane would’ve challenged for the scoring title last season, if a shoulder injury hadn’t forced him to miss the final 21 games of the regular season.

Chicago will once again be a threat in the Western Conference, but how deep they go will depend on how well the newcomers fit.